Gearing



1944- G: w. MATTSON 2,364,156

' GEARING Filed July 5, 1943 2 Sheets-Sheet 1 GUJTVKMATTSON ber. H i

The above enumerated and otherfeatures 'of my invention are embodied in the structure Patented Dec. 5, 1944 UNITED j 2,364,156 j v i Myinvention relates "to selfpropelled water Figure? is an'enl arged'sectionon plane VII vehicleamore particularl of the pontoon type, and covers improvements over the self-propelled watervehicle disclosed in my PatentNo; 2,177,074, dated October 24,1939. i i

In vehicles of the type referred to, the drive shaft extends transversely of thevehicle' while a propeller shaft extends longitudinally'of the vehicle at right angles with the-drive shaft, and in the' structure of my patent referred to, the driveshaft supports a helical gear which meshes Withfahelical pinion on the propeller'shaft; It 3 Has been found that withisuchgear drive" there is "considerable friction and also breakage of t etnw "An important object of my present invention is to provide an improved driving connection between the drive shaft and "the propeller shaft breakage and whichflfurthermore canfbe more economically produced.

More in detail, an important object of v the in v vention is to provide a driving gear linthe form Referring to Figures 1 and '2, pontoons II] are secured; to framework which comprises the transversely extending front and'rear'part's l l and l2 and thejlongitudinally extending U-shape'd parts 13 and I4 between'the transverse parts, the yokes of the U-frameparts beingseparated by the space l5. Secured to the yoke'parts l3 and lais a bifurcated supporting plate 3 thrcugh whose bifurcated end and the space I5 projects the housing structure Hfor the driving mecha-\ nism The housing H comprises the semi-cylindrical sections l1 and 18 provided with ears I9 to be secured together by bolts'ZO. Extending axiallfthrough the housing H is the driving or' crank shaft'ZI journaled in ball bearingszz and Y which will materially reduce the friction and;

gagement with radial teeth on a driven member,

on the propeller shaft, with the driven member rotatedin aplane at right angles to the plane of 1 the driving member on the driving shaft. 7

"A further object is to, construct the driving member of simple sheetmetal stampings, and to construct the body of the driven member of simple sheet-metal stampings between which are secured the radially extending teeth which are engaged by the driving surfaces on the driving: 7 member. M 7 w vAnother important objectis to provide simple;

means for guiding the driving member for: accurate driving engagement with the driven memplane iv-iv f Fig- Figure 6 is an enlargedsection on plane VI--VI enlarged section onplane V-V 23 which arehcusedjwithinthe cylindrical extensions 24 and 25 formed by outwardlydeflecting theside walls of the housing I7 and I8. These cylindrical deflected housing portions rest onl thje plate [6 and are engaged by straps ZB securedto the plate so that v the housing structure is thus rigidly mounted on the plate.

The housing has the enlargement 21 atjone side from which extends thetube 28 which at its rearend hassecured theretotheframework 2 9 m which the propeller 30 is located; and the rear'endof this framework journals a shaft 3! carryingat its upper end a cross-bar 32, the

rudder 33-extending from the shaft. A support ing hangar 34 for the tube 28 depends from the frame part 12; The ends of the cross-bar 32are connectedbyrods or cables 35 with the ends of a bar 36 fulcrumed on tlie frame part I2, and

from this bar rods or cables 31 extend tothe cross-bar 38at,the;lower end of the steering: shaft 39 for the steering wheel 40 the steering shaft being supported in the steering column 4! The crank shaft 2| has the pedals 42 thereon and a suitable seat (not shown) is provided for the operator for operating the crank shaft.

' Within the'housing H andmounted on the crank shaft is the driving element D shownascompris ing the annular disk 43 secured to and supported I by'conical-shaped' hub members which may be secured tothe disk as by spot welding 45, the I disk and the hub members beingsir'nple sheet-- metal stampings. The hub members may be se curedas by welding to the crank shaftor by othersuitabIe means. n b The disk has the substantially involute. slots 46 therethrough equally spaced from eachv other ina circular row between the inner andfouter peripheral edges 'of the; disk; each slot presenting opposed parallel camming or driving surfaces 41 With the engagement of the rollers on the and 481 teeth of the driven element P by the compara- Extending through the propeller-tube 28 and tively low incline edges of the slots 46 of the into the enlargement 21 of the housing H is the driving element, the driving friction will be greatpropeller shaft 49 which, as shown, may be tubu- 5 1y reduced and the vehicle can be propelled with lar, this shaft at its outer end having the propeller much less effort. With the driving and driven 30 mounted thereon and being journaled in a elements constructed of sheet metal parts which ball bearing 50 at the outer end of the tube 28. can be readily stamped out of stock material, The propeller shaft at its inner end is journaled the cost of production is greatly reduced. in a ball vbearing .51 disposed at.. th,e.inne1:,.end oi l Ihave shown a practicaliandiefiicient-embodithe cylindrical extensionjZ on ;-;the enlargement; mentiofi nm invention blit i do nojrtlesire to be 21 from which the tube 28 extends. Inwardly oflimited to the'exact construction and arrangethe bearing the shaft 49 mounts the drivenH ment shown and described as changes and modielement P which operates within the housingv 'fic'ations may be made without departing from enlargement 21. As shown on Figures 3 andafi imaifi CODe of the invention.

the axis of the driven element P is at rightangles I claim asiollows: with the axis of the crank shaft 2|; "and' the; ltIi'i gearing, a rotatable member having indriven element is adjacent to onegside efitherdifiklzw volutegi slotswtherein arranged in spaced relation 43 of the driving element D and is rotatable inng in aicircular row concentric with the axis of said plane extending axially and diametrally' zoy member, and each slot providing opposed parallel hrnu hz he disk.e4 wtheadrivengmembentbeine involutasuriaces andiamelementi.rotatablenin a. provided with teeth T for eng ement-airline plane at.,ri ht:angles to-.t e..p1ane oi 'rotationiofi 91146 mztheidrivingi n emberrdisk...-;Refer ing to thezsaidememberi and-having-teeth;thereon. ens.

Figure 5',;\the dri-ven members.-is- -shown .as.come. 'gageablerin saidsinvolute,slotsnforestablishingsa pnising; two isegmentalidisksafl and-.54 irigidlyisaezs drive connection with saidinivolute surtacesa, ured-toeether asebmspot weldingfii and having; 2.,;In .gear-ine, -.a-emtatable member hailinginhub portions1 56;receiving the,- proneller .shafhMw volute slotsithereimarran edi in spaced. relation: meansisuch asa-Qpin SLsecu-ring the drivenstruaeinn circulanrow- $noentric-.-With:-the aiolseofsaidw tune, to thesprepeller; shaft, At.regula rly, spaeedi memberand.eachgslot1providing,opposedpara1lelv nant pointsathei diskstfia anch54yhave=thesops air involute surfaces, rands ntelement.rotatablein a. pgsed putward: deflections 58; land, 5 9- providing) plane .at right anglesntogthe plane. of. rotation 10;"

v sockets 60. tQrteethror-pins it..- .To holdznthepinsathe saidgmember anduhaving. teethi .thereongene,

a ainst; zraclialadisnlacement, tth ye rn pmeeseable int saiminvolutew l oteb i ge vided; gwith 3 circum-fiererttials ,channels 62. for; re-e. drive connection with .said. .involute. surfacesnsaidi ceiving inden tures fl qformedsinltheedisks thei 3i slots and teeth being so arranged that at leash 7 pins being, assembled; in 1 the rsocketstbeiore" the, two otsaid \teethare. atkall; times in ,register with di ksiaretspotiwelded;toggthen; Theapins-Jtere. said slots... j gml tev inm.headsz ii lirbetween-iwhich audit-the 3'.,. In..a..gearing,-;a trotatable. member having periphery;oithe-disks53 nd-.54. the pins iournali curvedtslots;therein .arr angedQinpredetermined. the, rollers 65,.the diameter; of these, rollers; being; 4.0; spaced .Ielationship.,m..tlnirculanrow concentrim substantiallylthe;widthsat-the:slots-Alaintheidislsw with the axis of said member,.=.and .anbelemente 43mthe=drivingmembegn i v rotatablehina plane,atsubstantiallvright,angles' Referring toiFiguresra and -;4,; the cooperation to the planaofimtationpf said'member andlhaw. of the rollers 65 with thedriving-slotsAe is clear-s. in'g; projectionsthereonengageableiin'saidgeuryedj 1y, shown; As-th cnank shaftiz lv ismneratedfor 45gislotsifor,establishing; a,drive connection with'the; rotation of ,thadrivin i elementD-inthe .direction-., edges of saidtslots; E8401? oflsaid slots: having a" of ithei arrow. ind icatedr'onl'ligure ,4, the-camming; predetermined angularirelatio'n to the' axisfoffijsmd onwdIiil/iingnedges; 41 v,of the slots .4,6 --engag.e sung; member whichfi's substantially thegsame forfall" cessivelywith.thei-toothirollers.Bi ter rotationptt theslotsh, v v H V theidriven-element Piintthe direction;ohtheiatrow; 512: iv-Ina e aringtcarotatable member.havin ian'- indicated on Figurefi the propellernbeingetheni; annular'areathereoFnoncentriv'w tnel axisiofoperated fomforward ,trave1.:ot the.ivehicle thet said member 'prcwicledwith-transverselyextenddriying element. having,always.-'driving, engage ing nommdial slotsn said"slots being eefined -byw mentvwith morethan pnetooth pf. thadrivenelea; edges comprising drive surfakzes;and'an elernentment. When thendirection, of,. .ope rationrotuthe rotaitablek-in -a--plane at-a substantial angle to: crank-,shaitis,reversed ,,thmdrivinggor carnming=,, "fl-theaplane' of rotationofis'aid member and having define pf the' s1ots..46...\.wil1.- en e, Withithe... 'radial iprej-ectionstllereon engageableinsaidslots teeth rolle r for rotation.iofi theidriven lementtlif, for establishing a drive connection with trie -slot" nd theYpropel1er ;in.reverse fii-rectiQn,- for,back; edgeszmtlrndnive connection andrmg m m ward'inovementpi the-vehicle. H mqizementsbeimeemieach;ofnsamnsietgg ge sa A i th teeth poripins hon. thei driven member, 13, s'aidsprojeetiom being the same in tliecase ch -all; uring theforepart and latter partnofi their, enel the slots and pr ions. easement in ,theslots-A 6.are;atmore orllessinfian, 5. finial-245631311181;-azazdtatameanmmberzhavingian angle withthewplanegof, the .drivin disk, thisi nmi'lamarea:ahereofsreoncentricntoe-theeaxis ofi. diskiimayi betsuhjectedtto lateral thrust and .ttoi. m -said; member DIQWMVWitIEZtIJEHSVQISBIyleXtelIdii taxesu iich thrust. andto,maintaimtheidriving ing non-radiaki'slets nisairh slatsibeing idfindxby disk int its lproperudriving plane,,abutmentsvara; edgesscommlisingigiriveisunfacesisand an; element provided. therefor. at onnqsitevsides thereon As. rotatableim-azplaneiatsaasubstantiai iangleitoz the shown, on Fig resi +l.and,.,7.,'.a-. U-shaDed-bracket, plane of rotation of said member andi'havinge ras-l 6 5; i see red in ,thehou'sing' H,close .to;the.d1ii/eni. s dialnpr oi ectionsj, thereontengageable in :saaidiislhts element P with its legs extending topoppqsitei for establishing a drive connection with theislolzi sides. oil the. driver. disli ll 3. and,-mounting;. rollers edge saidslots andnpmjeetions ibeingpstx anranged 61'andengagmgthepppqfiite;sidessofstheidisks. that at least two of said pIOJ'ECtiOHSEB- TBQMIKRIb so; as to take. 1 12i ny. lateralj'thrustpfithedisk timesainmegifiten withssaidwslotsn i wmlerthe.yehiclegissbeinapropelled; v In'a eearing'for use in mv'meehemwnea.

and a driven element rotatable in a plane at a substantial angle to the plane of rotation of said member and having radial projections thereon engageable in said slots for establishing a drive connection with the slot edges, said projections each comprising a roller movable in a curved path into and out of a cooperating slot as the roller and slot are brought into register.

7. In a gearing for use in driving the propeller of a water vehicle or the like, a rotatable driving member having an annular area thereof concentrio with the axis of said member provided with transversely extending non-radial slots, said slots being defined by edges comprising drive surfaces, and a driven element rotatable in a plane at a substantial angle to the plane of rotation. of said member and having radial projections thereon engageable in said slots for establishing a drive connection with the slot edges, said rotatable member having said annular area thereof formed flat with said slots extending through the thickness of the same, and also being provided with means in the form of abutments at opposite sides of said annular area for holding said member in its driving plane and at substantially right angles to the plane of the driven element.

GUST W. MATTSON. 

